As England prepares to fight the Nazis, three very different women answer the call to mysterious country estate Bletchley Park, where the best minds in Britain train to break German military codes. Vivacious debutante Osla is the girl who has everything - beauty, wealth, and the dashing Prince Philip of Greece sending her roses - but she burns to prove herself as more than a society girl, and puts her fluent German to use as a translator of decoded enemy secrets.

Growing up in New York City in the 1910s, Luella and Effie Tildon realize that even as wealthy young women, their freedoms come with limits. But when the sisters discover a shocking secret about their father, Luella, the brazen elder sister, becomes emboldened to do as she pleases. Her rebellion comes with consequences, and one morning Luella is mysteriously gone.

Seventeen-year-old Lenni Pettersson lives on the Terminal Ward at the Glasgow Princess Royal Hospital. Though the teenager has been told she’s dying, she still has plenty of living to do. Joining the hospital’s arts and crafts class, she meets the magnificent Margot, an 83-year-old, purple-pajama-wearing, fruitcake-eating rebel, who transforms Lenni in ways she never imagined. As their friendship blooms, a world of stories opens for these unlikely companions who, between them, have been alive for one hundred years.

Shuggie’s mother Agnes walks a wayward path: She is Shuggie’s guiding light but a burden for him and his siblings. She dreams of a house with its own front door while she flicks through the pages of the Freemans catalogue, ordering a little happiness on credit, anything to brighten up her grey life. Married to a philandering taxi-driver husband, Agnes keeps her pride by looking good - her beehive, make-up, and pearly-white false teeth offer a glamourous image of a Glaswegian Elizabeth Taylor.

At 97 years old, Winnifred Ellis knows she doesn’t have much time left, and it is almost a relief to realize that once she is gone, the truth about her shameful past will die with her. But when her great-grandson Jamie, the spitting image of her dear late husband, asks about his family tree, Winnifred can’t lie any longer, even if it means breaking a promise she made so long ago....

London, 1935. Ruby is always hungry, but she will go without if it means her young brothers can eat. 1930s Bermondsey might be called the larder of London, with its pie, pickle and jam factories, but for the poor working classes, starvation is often only a heartbeat away. When Ruby's neighbour suggests she ought to go to the Methodist Mission for free food, Ruby knows her father will be furious, but she has no other option.

On the beautiful beaches of Crete, an old woman is handing out scraps of paper. Sofia, eighty-five years old, unable to speak, is desperate to find a daughter she has never known. After a tragic childhood in Athens and a soaring career as a singer, the brutal treatment of the man she loved by a tyrannical regime forced her to give up her daughter mere days after her birth. Now she longs to be reunited with her child before it's too late. Meanwhile in London, Zoe is searching too. In the months since the disappearance of her teenage daughter, Zoe's life has crumbled apart.

Bristol, 1939. School leaver Maisie Miles suspects her father, a small-time crook, has an ulterior motive for insisting she gets a job at the W. D. & H. O. Wills tobacco factory but keeps it to herself. She's befriended by effervescent Phyllis Mason and kind-hearted Bridget Milligan who take pity on her and take Maisie under their wing. But beneath their happy-go-lucky exteriors, they all harbour dreams and worries about what the future holds.

December 1940. As German bombs fall on Southampton, England, the city's residents flee to the surrounding villages. In Upton village, amid the chaos, newly married Ellen Parr finds a girl asleep, unclaimed at the back of an empty bus. Little Pamela, it seems, is entirely alone. Ellen has always believed she does not want children, but when she takes Pamela into her home, the child cracks open the past Ellen thought she had escaped and the future she and her husband, Selwyn, had dreamed for themselves. As the war rages on, love grows where it was least expected, surprising them all.

At the heart of Dover's Market Square lies the Castle's Café. A bustling, homely place run by the formidable Nellie Castle and her six children. Since the scandalous birth of her beloved son 10 years before, Marianne, Nellie's eldest daughter, has preferred to stay in the kitchen, hidden away from the town gossips. Overcome with shame, Marianne has never revealed the name of Donny's father - not even to her own mother. But with World War II just around the corner, Marianne's past catches up with her. And suddenly the lives of the Castle family become a lot more complicated.

England, 1943: Home is no longer safe for eight-year-old twins Molly and Jacob. Night after night, wailing bombs and screeching planes skim the rooftops overhead. They cradle each other, shivering in terror, not knowing if they'll live to see dawn. Their mother, Martha, has no choice but to evacuate them to the safety of the countryside. At the train station, Martha bites back tears as she says good-bye to her precious children. Knowing she might never see them again, she gives Jacob a letter, pressing the envelope into his hands and telling him to only read it if they are in danger.

Southampton 1940. Abandoned when she was tiny, Maisie Reynolds was separated from her twin brother and forced to grow up in Holly Bush orphanage - a place where she has never known love or kindness. But with the world at war and Hitler’s devastating bombs coming ever closer, fate has other plans for Maisie, and a secret from her past changes everything. When she meets handsome Canadian paratrooper Cam, Maisie learns that love might not be lost to her after all - but not before her past life and D Day bring a tragic twist to her happiness.

Summer 1940: Hedy Bercu fled Vienna two years ago. Now she watches the skies over Jersey for German planes, convinced that an invasion is imminent. When it finally comes, there is no counterattack from Allied forces - the Channel Islands are simply not worth defending. Most islanders and occupying forces settle into an uneasy coexistence, but for Hedy, the situation is perilously different. For Hedy is Jewish — a fact that could mean deportation, or worse.

In April 1943 a young woman washes ashore on a deserted beach in Cornwall, England. With shorn hair and a number stitched on her tattered chemise, Alice is the survivor of a ship torpedoed by a German U-boat. She's found by the mysterious Viscount Jack Trewella, who suspects that she's a prisoner of war or a spy. But the secret Alice asks Jack to keep is one he could never have guessed, and it creates an intimate bond he never expected.

A heartbreaking, enthralling and utterly unforgettable World War 2 story of two young sisters cruelly abandoned by their mother at an orphanage. 1929: four-year-old Etty and eight-year-old Dorothy are abandoned at Blakely Hall orphanage by their mother, never to see her again. With no other family to speak of, the sisters worship their beloved mam - and they are confused and heartbroken to be deserted by her when they need her the most.